Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 918 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
2. 2.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) the same carton (c) how clear the view is
3. 3.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same light (b) the same mirrors (c) the same carton (d) the angle of the mirrors
4. 4.🧺 Do we need a ruler for the periscope? (a) needed (b) not needed
5. 5.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
6. 6.🧺 Do we need vinegar for the periscope? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a dull brick (b) black cloth (c) a rough wooden board (d) aluminium foil
8. 8.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) much bigger (b) in colour (c) upside down only (d) flipped left to right
9. 9.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
10. 10.🔭 Which of these reflects light well? (a) a mirror (b) black cloth (c) a rough wooden board (d) dark soil
11. 11.🔭 Which of these reflects light poorly? (a) dark soil (b) still clear water (c) a mirror (d) a shiny steel plate
12. 12.True or false: a magnet is not needed for the periscope. (a) False (b) True
13. 13.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) nothing at all (b) taller walls (c) only short walls (d) the ground
14. 14.True or false: still clear water reflects light poorly. (a) True (b) False
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) the angle of the mirrors (b) the same light (c) the same mirrors (d) how clear the view is
17. 17.True or false: a pencil is needed for the periscope. (a) False (b) True
18. 18.True or false: two small mirrors is not needed for the periscope. (a) True (b) False
19. 19.🔭 Who uses a periscope to look above the water? (a) a farmer (b) a baker (c) a submarine crew (d) a pilot in a plane
20. 20.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see germs (d) see over a wall
21. 21.🔮 Predict: you cover the top mirror with paper. What do you see? (a) two pictures (b) a rainbow (c) a brighter view (d) only darkness
22. 22.🧺 Which of these is needed for the periscope? (a) vinegar (b) turmeric powder (c) yeast (d) a pencil
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) True (b) False
24. 24.🔭 How many mirrors does a simple periscope use?
25. 25.🔭 How many times does light bounce off a mirror in a simple periscope?
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.True or false: sticky tape is not needed for the periscope. (a) True (b) False
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the object we look at is kept the same. (a) False (b) True
29. 29.🧺 Which of these is needed for the periscope? (a) turmeric powder (b) yeast (c) an empty juice carton (d) vinegar
30. 30.True or false: vinegar is needed for the periscope. (a) False (b) True
31. 31.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
32. 32.True or false: turmeric powder is not needed for the periscope. (a) True (b) False
33. 33.🧺 Do we need a pencil for the periscope? (a) needed (b) not needed
34. 34.True or false: a balloon is not needed for the periscope. (a) True (b) False
35. 35.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) two small mirrors (c) an empty juice carton (d) a battery cell
36. 36.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “how clear the view is”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🔭 Does black cloth reflect light well or poorly? (a) reflects light poorly (b) reflects light well
38. 38.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) sticky tape (c) vinegar (d) a pencil
39. 39.🔭 Does dark soil reflect light well or poorly? (a) reflects light well (b) reflects light poorly
40. 40.🔍 Which is the odd one out? (a) black cloth (b) aluminium foil (c) a mirror (d) a shiny steel plate

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